Yazar "Şeker, İbrahim" seçeneğine göre listele
Listeleniyor 1 - 9 / 9
Sayfa Başına Sonuç
Sıralama seçenekleri
Öğe Alchemilla vulgaris effects on egg production and quality expressed by heat-stressed quail during the late laying period(South African Bureau for Scientific Publications, 2019) Akdemir, Fatih; Köseman, Abdurrahman; Şeker, İbrahimPotential for mitigating effects of heat stress through dietary Alchemilla vulgaris (AV) supplementation during the late laying period of Japanese quail (Coturnix coturnix japonica) were investigated. A 2 x 3 factorial arrangement of environmental temperature (ET) regimes and levels of dietary supplementation with AV (0%, 1%, and 3%) was used in a 75-day experiment. Twenty-five quail were randomly assigned to each treatment with five replicate cages of five birds. The birds were housed in temperature-controlled rooms at 22 +/- 2 degrees C for 24 h/day (TN) or 34 +/- 2 degrees C between 09h00 and 17h00 followed by 22 +/- 2 degrees C for 16 h/day (HS). The interaction of ET and supplement regimes was rarely significant. In HS quail supplemented with 1% AV, egg production was reduced and FCR was increased compared with the other treatments. Dietary AV was found to reduce egg production in TN conditions, but 3% AV supplementation in the HS group prevented decreased egg production and improved FCR. Various indicators of egg quality were significantly affected by supplementation with AV at certain times during the experiment. Most effects of HS on egg quality were manifest in the first 15 days of ET regimes. Although HS significantly decreased eggshell weight until 31-45 days, AV supplementation improved it on the 45th day and then maintained it through the end of the experiment. Thus, AV may mitigate some effects of HS by partially preventing decreased egg production and increased FCR during the late laying period of Japanese quail.Öğe Atların Yarış ve Yarışma Performansları Üzerine Etkili Faktörler ve Performansı Artırma Yolları(Malatya Turgut Özal Üniversitesi, 2018) Köseman, Abdurrahman; Şeker, İbrahimKantitatif bir karakter olan atların yarış ve yarışma performansı genetik ve çevresel faktörlerin etkisinde şekillenmektedir. Bu nedenle bireyler ve populasyonlar arasında varyasyon bulunmaktadır. Genetik etki, tayın anasından ve babasından aldığı genlerden dolayı sahip olduğu genotip kapasitesini ifade etmektedir. Performansı etkileyen çevresel faktörler arasında; cinsiyet, yaş, doğum ağırlığı, mesafe, handikap ağırlığı, pist tipi ve parkur yapısı, ana yaşı, konulan ikramiye, koşan at sayısı, atın pistteki koştuğu yer, binici deneyimi gibi faktörler yer almaktadır. Bu derlemenin amacı, atların yarış ve yarışma performanslarını etkileyen genetik ve çevresel faktörler hakkında bilgi sunmaktır.Öğe A comparative melissopalynological study of royal jelly from Turkey(Taylor & Francis, 2022) Yıl, Gülşah; Karlıdağ, Semiramis; Akyol, Abuzer; Köseman, Abdurrahman; Uyumlu, Ayşe Burçin; Yılmaztekin, Murat; Erdoğan, Selim; Şeker, İbrahimThree treatments (Glucose, Sucrose, Bee Feed Syrup) were used to examine the influence of supplementary feeding on the pollen spectrum of the royal jelly produced by Apis mellifera L. colonies. Apis mellifera colonies were located in the Battalgazi and Dogansehir districts of Malatya province in Turkey. In total 255 royal jelly samples were investigated and the analysis recorded over 30 taxa. In both sites the control group heavily utilised Quercus, Verbascum, Astragalus, and Lamiaceae. The feeding treatments saw Quercus, Verbascum, and Astragalus still being used but in different proportions. The utilisation of Lamiaceae was much reduced and Echium became an important component in colonies that had supplementary feeding. © 2022 Collegium Palynologicum Scandinavicum.Öğe Effects of Alchemilla vulgaris on growth performance, carcass characteristics and some biochemical parameters of heat stressed broilers(Hellenic Veterinary Medical Society, 2020) Köseman, Abdurrahman; Akdemir, Fatih; Üremiş, Nuray; Şeker, İbrahim; Türköz, YusufThis study aimed to investigate the effects of Alchemilla vulgaris (A. vulgaris) on growth performance, carcass characteristics, and biochemical parameters in broilers exposed to high environmental temperature conditions. A total of 45 broilers of 21 days of age (Ross 308) were used and grouped as the control group (C), and the groups with the addition of 1% (G1), or 3% (G2) A. vulgaris to chicken diet, respectively. In this study, the body weights of heat stressed broilers were significantly different on the 35th day and onwards. Feed intake was higher in the control group. Feed conversion ratio (FCR) was better in groups G1 and G2 compared to control on the 36th and 42nd day, the FCR was better on the 21st- 42nd days. The highest hot and cold carcass performance were observed in group G2 (79.72±0.93% and 78.02±0.99, respectively), and the lowest values were observed in group C (76.26±1.13% and 75.70±1.20%, respectively). A. vulgaris, reduced serum malondialdehyde (MDA) levels as numerically, and suppressed lipid peroxidation in a dose-dependent manner. It had significant effects on monocytes (MON %, MON count), platelets (PLT), and plateletcrit (PCT) parameters only. In conclusion, the deleterious effects of high environmental temperature in broilers could be partially reversed by A. vulgaris addition to the diets between days 21 and 42.Öğe Effects of chitosan coating and different storage periods of broiler breeder eggs on growth performance and carcass characteristics(Sociedade Brasileira de Zootecnia, 2020) Köseman, Abdurrahman; Akdemir, Fatih; Şeker, İbrahimThis study was carried out to determine the effects of coating with chitosan film and storing at different periods (7, 14, and 21 days) of broiler breeder eggs on growth performance and carcass characteristics of the chicks. The present study was arranged as three different storage periods (7, 14, and 21 days) and coating or not the eggs with chitosan film. In total, 1800 hatching fertilized eggs were used. These eggs were divided into six groups with 100 eggs in each and 600 eggs in each replication. A total of 751 chicks obtained from the hatching were used as material in this study. As a result, all chicks in the coated chitosan groups were alive during the 42-day growth period. The average hatching weight was determined as 42.7 +/- 0.1 g. The mean body weight (BW) of chicks on the 42nd day was determined as 2541.8 +/- 12.3 g in all groups. The effect of repetition on weekly BW and body weight gain (BWG) was found to be significant in the growth period. The differences between the groups for the BW were significant on day 1. While the weekly BWG varied, the growth performance was similar in the growth period in all groups. The differences between the groups in terms of slaughter weight and carcass characteristics were insignificant. It was determined that coating broiler eggs with chitosan and storing them in different periods does not have significantly negative effect on growth performance and carcass characteristics.Öğe Effects of coating with chitosan film and storing at different periods of brood broiler eggs on hatching performance(Pakistan Agricultural Scientists Forum (PAS FORUM), 2020) Köseman, Abdurrahman; Akdemir, Fatih; Şeker, İbrahimThe aim of this study was to investigate the effects of coating with chitosan film and storing at different times (from 7 days to 21 days) of Ross 308 brood broiler eggs on weight loss of the eggs and hatching performance. In this study, the experimental treatments consisted of three different storage periods (7, 14 and 21 days) and eggs of each of these groupwere further divided in two sub groups as coating with chitosan film (group A, C and E) or not (group B, D and F). In total, six treatment groups were formed for the study. Total number of eggs used in the study was 1800. In all groups with chitosan coated, high early embryonic mortality (over 90%) and low mid and late embryonic mortality were observed (2.41%-6.89%) (p<0.05). The lowest hatchability was observed in groups A, C and E, which coated with chitosan film (0.67%, 3.00% and 0.33%, respectively). It was further observed that coating the fertilised broiler breeder eggs with chitosan film for different storage periods significantly decreased weight losses in the eggs, both during storage and incubation. However, the expected positive effects on hatchability of incubated eggs were not actually observed Conversely, the coating of eggs with chitosan film adversely affected the embryonic mortality and the hatching performance. © 2020, Pakistan Agricultural Scientists Forum.Öğe Farklı materyallerden yapılmış tabana sahip ahşap kovanlarla kışlatmanın arılı çerçeve sayısı ve kovan ağırlığına etkisi(Namık Kemal Üniversitesi, 2021) Karlıdağ, Semiramis; Şeker, İbrahim; Köseman, Abdurrahman; Akyol, AbuzerArıcılıkta ilkbahar ve yazın ölüme neden olmayan bazı problemlerin kışın olması, daha çok kışlatma sırasında koloni kayıplarının meydana gelmesi ve kış kayıplarının hala % 8-10’un altına düşürülememesi bu konuda yeni araştırmaların yapılmasını gerektirmektedir. Arıcılık yapılan bölgenin koşullarına uygun farklı kovan tiplerinin kullanılması arıların sağlığı ve yaşam gücü üzerinde etki gösterdiği gibi elde edilecek bal ve diğer arı ürünlerinin miktarını da etkilemektedir. Bu araştırma, balarısı (Apis mellifera L.) kolonilerinin; ahşap tabanlı (AT) ve ızgaralı-polen tuzaklı plastik tabanlı (IPTPT) ahşap kovanlarda kışlatmanın arılı çerçeve sayılarına ve kovan ağırlıklarına etkisini belirlemek amacıyla yapılmıştır. Mevcut araştırma İnönü Üniversitesi Arıcılık Geliştirme-Uygulama ve Araştırma Merkezi’ne ait arılıkta yürütülmüştür. Araştırmada arı materyali olarak toplam 21 adet balarısı kolonisi kullanılmıştır. Koloniler, 12 adet AT ve 9 adet IPTPT ahşap kovanda kışlatılmıştır. Kışlatma kabiliyeti AT kovanlarda % 42.03, IPTPT kovanlarda % 47.27 olarak hesaplanırken, tüm kovanlardaki koloni kaybı % 55.35 olarak belirlenmiştir. Kovan tiplerinin kışlatma öncesi ve sonrasına ait arılı çerçeve sayıları arasında farklılıklar istatistiki olarak farklı düzeylerde önemli tespit edilmiştir (p = 0.041-0.007). Kovan ağırlığı bakımından yapılan hesaplamalarda ise AT kovanların kışa girişteki ağırlıklarının % 51.60’ını, IPTPT kovanların ise % 51.89’unu muhafaza ettikleri saptanmıştır. Bu çalışmada hem kışlatma öncesi hem de kışlatma sonrasında kovan ağırlıkları bakımından AT ve IPTPT kovan tipleri arasında farklılıklar istatistiki olarak önemli bulunmamıştır (p>0.05). Ancak, her bir kovan tipinin kendi içerisinde kışlatma öncesi ve sonrasına ait kovan ağırlıkları arasında farklılıklar ise istatistiki olarak farklı düzeylerde önemli tespit edilmiştir (p = 0.028-0.008). Sonuç olarak diğer verim özellikleri, maliyet, uzun ömürlülük ve sağlık koşulları da dikkate alınarak her iki kovan tipinin de arıcılıkta tercih edebileceği kanaatine ulaşılmıştır.Öğe Investigation of genetic structures of coloured horses by mtdna d-loop sequence analysis in Turkey(Kafkas Üniversitesi, 2019) Köseman, Abdurrahman; Özşensoy, Yusuf; Erdoǧan, Metin; Yaralı, Cevdet; Toprak, Burhan; Zengin, Kemal; Şeker, İbrahimThe aim of this study was to determine the genetic structure of Coloured horses in Turkey by analysis of the D-loop sequence of mitochondrial DNA (mtDNA). A total of 28 Coloured horses were examined. DNA was extracted from blood samples using DNA isolation kit; 519 bp long mtDNA D-loop region was amplified by PCR and sequenced by capillary electrophoresis system. Population parameters and phylogenetic trees were drawn by using MEGA4 software package. It was also compared with the DNA sequences of horse populations from diffrent countries. In this study, 42 diffrent polymorphism regions and 10 diffrent haplogroups were detected. Additionaly, Tajima D value was found to be -0.31 and population expansion was determined. It was determined that the base diffrences among the horses ranged between 0.000 and 0.032. It was detected that the horses formed diffrent clusters from each other and they were intertwined with the populations of diffrent countries. Moreover, it was also observed that some horses formed their own populations at diffrent points from the other countries’ horses. As a result, it was observed that the genetic structures of horses which used in population were diffrent from each other and they originated from diffrent mothers. According to the results obtained, it is considered that Coloured horses can be a native horse breed of Turkey.Öğe Investigation of Genetic Variations using Microsatellite Markers in Colored Horses in Turkey(Pleiades Publishing, 2020) Köseman, Abdurrahman; ÖzŞensoy, Yusuf; Erdoǧan, Metin; Yaralı, Cevdet; Toprak, Burhan; Zengin, Kemal; Şeker, İbrahimAbstract: The aim of this study was to determine the genetic variation of Colored horses by using microsatellite markers. In the study, samples from a total of 28 Colored horse were genotyped using 17 microsatellite markers, 12 of them are recommended by the International Society for Animal Genetics (ISAG) and the other 5 loci included by the StockMarks Genotyping Kit. A total of 129 different alleles were identified and the average number of alleles was 7.588.The heterozygosity value (Ho) was 0.286 as the lowest (LEX3) and 0.929 (HTG10) as the highest among the markers; the expected lowest heterozygosity value (He) was determined as 0.607 (HTG4) and the highest one was 0.876 (VHL20). The mean Ho and He values were calculated as 0.729 and 0.771, respectively. On a population basis, the mean FIS and FIT values were 0.047. The mean PIC value was 0.741. In the phylogenetic tree formed by the neighbour joining tree (NJT), it was determined that the horses were generally categorized into 3 groups. Although statistically significant results (P = 0.01008) were found in the studies investigating whether the population of Colored horses had the risk of extinction or not, it was determined that the data showed normal L distribution indicating no risk of recent extinction. It was determined that the Colored horses had a genetically important potential.
